here is a sample of the certification statement:
Engine modified from propeller version S2 (fixed pitch) to version S3 (hydraulic governor drive)
Work performed as per Rotax 912/914 Heavy Maintenance Manual Edition 1 Rev 5.
Chapter 72-00-00 Section 3.9.1, 3.9.4, 3.9.5 for modification. Section 3.9.8 & 3.9.13 - 3.9.16 inclusive for reassembly.
• Removed version -2 propshaft p/n 837285, s/n xxxxxxx & replaced with -3 propshaft p/n 837284, s/n xxxxxxxx.
• Installed governor drive parts for hydraulic governor.
• Marked gearbox with new part number 877708 to reflect change to version 3.
• Friction torque set to xxx inch lbs.
• Marked engine dataplate as 912S 3.
